How many numbers can be formed with digits 3,4,6,and 8 without repetition ?

Explanation

To solve the problem of how many numbers can be formed with the digits 3, 4, 6, and 8 without repetition, we will consider different cases based on the number of digits in the numbers formed.

### Step 1: Count the 1-digit numbers
For 1-digit numbers, we can use any of the four digits (3, 4, 6, 8).

- **Calculation**:
- Total 1-digit numbers = 4 (3, 4, 6, 8)

...